The future: Earth system modelling

Abstract

Earth system modelling will be the kind of modelling that will be performed more and more. After some philosophical remarks, an overview will be given of some science questions that can only be properly treated by earth system models. The focus of these science questions will be on emissions. Concerning meteorology, the problems still existing with the atmospheric boundary layer will be presented. Data-assimilation will be addressed as an application issue, which can only be carried out more objectively with earth system models. The paper ends with ten rules for correct modelling.